If I understood you correctly, you want to access the Google Maps' Map JS object that is created using the JS API, right?

Well, the component has a osGoogleMap object available, that contains references to all Maps/Markers/Events we create with the component. Each of these includes a reference to the respective Google Maps API object you are looking for. In case of Maps, you should be able to obtain it like so:

var googlesMap = osGoogleMap.getMap(<MapIdentifier>).gMap;

However, the osGoogleMap object mentioned above is not available through the console directly. To be able to reach it, you should use the platform's "RunJavaScript" action to run your code (instead of using unescaped expressions).

Is this what you were looking for? Please let us know how thing's went :).